194737-50-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 194737-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,4,7,3 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 194737-50:
(8*1)+(7*9)+(6*4)+(5*7)+(4*3)+(3*7)+(2*5)+(1*0)=173
173 % 10 = 3
So 194737-50-3 is a valid CAS Registry Number.
194737-50-3Relevant academic research and scientific papers
Synthesis of the novel antidepressant (R)-(-)-Rolipram
Langlois, Nicole,Wang, Hai-Shan
, p. 3133 - 3144 (2007/10/03)
Enantioselective synthesis of (R)-Rolipram 1 has been achieved through a conjugate addition of cyanide to enantiomerically pure 2-(2-aryl ethenyl)oxazoline 2, followed by selective reduction of the adduct with NaBH4-NiCl2.
